已知
内部有三条射线
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/06f7c484-6152-45b6-8418-65ba7a325a47.png?resizew=326)
(1)如图1,若
,
,
平分
,
平分
.求
的度数;
(2)如图2,若
,
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/06f7c484-6152-45b6-8418-65ba7a325a47.png?resizew=326)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e4f8da439877e68932861ce88a125e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2557547eecdc826b8282058802d217.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e847513a54d0e5a8433f583767ccaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1a9346dcd7fac7bd08d593ee0b55eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063934c74e69a77e8f059fec77879d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2557547eecdc826b8282058802d217.png)
更新时间:2024-02-23 13:12:41
|
相似题推荐
解答题-问答题
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(0.85)
名校
【推荐1】直线
、
相交于点
,
平分
,射线
于O点,且
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60380ca89b244ae59af6551b5fdf25be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3555215b136d04bace438f1bb87b10e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/47ad21ac-ef39-4af4-a9f6-7157847004ec.png?resizew=175)
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【推荐2】如图,已知
,
与
互余,
平分
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/11201eb9-fd88-4b76-9264-a8a215551c14.png?resizew=195)
(1)若
,求
和
;
(2)设
,
,试探究
与
之间的数量关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fd5e8829ef6234d057c398b7eafc7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f55c6ac896ab4277fae2230a6e10b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15886bb1365d039d8e4450cae287788d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/11201eb9-fd88-4b76-9264-a8a215551c14.png?resizew=195)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32944d5bbc3d6e874871e7c519f3adaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21331c2a4e20d6d182eff6e129c7e2af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcf1889658070e1635c094a0409a738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
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【推荐3】如图1,O为线AB上一点,过点O作射线OC,使∠AOC:∠BOC=1:2,∠MON的一边OM在射线OB上,另一边ON在直线AB的下方,且∠MON=90°.
![](https://img.xkw.com/dksih/QBM/2022/4/5/2951842101411840/2957132657156096/STEM/b326f71c-268f-41a8-a5d7-076bf1582fd3.png?resizew=224)
![](https://img.xkw.com/dksih/QBM/2022/4/5/2951842101411840/2957132657156096/STEM/d94c274f-345e-4094-adc8-270b8e71a828.png?resizew=230)
![](https://img.xkw.com/dksih/QBM/2022/4/5/2951842101411840/2957132657156096/STEM/97a8ecd9-5e71-4ac3-8fe9-39a3cf3f05f2.png?resizew=238)
(1)如图1,求∠CON的度数:
(2)将图1中的∠MON绕点O沿逆时针方向旋转至图2,使OM在∠BOC的内部且恰好平分∠BOC,请问此时直线ON是否平分∠AOC,请说明理由.
(3)将图1中的∠MON绕点O以每秒6°的速度沿逆时针方向旋转﹣周,在旋转的过程中,若直线ON恰好平分锐角∠AOC,求∠MON所运动的时间.
![](https://img.xkw.com/dksih/QBM/2022/4/5/2951842101411840/2957132657156096/STEM/b326f71c-268f-41a8-a5d7-076bf1582fd3.png?resizew=224)
![](https://img.xkw.com/dksih/QBM/2022/4/5/2951842101411840/2957132657156096/STEM/d94c274f-345e-4094-adc8-270b8e71a828.png?resizew=230)
![](https://img.xkw.com/dksih/QBM/2022/4/5/2951842101411840/2957132657156096/STEM/97a8ecd9-5e71-4ac3-8fe9-39a3cf3f05f2.png?resizew=238)
(1)如图1,求∠CON的度数:
(2)将图1中的∠MON绕点O沿逆时针方向旋转至图2,使OM在∠BOC的内部且恰好平分∠BOC,请问此时直线ON是否平分∠AOC,请说明理由.
(3)将图1中的∠MON绕点O以每秒6°的速度沿逆时针方向旋转﹣周,在旋转的过程中,若直线ON恰好平分锐角∠AOC,求∠MON所运动的时间.
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【推荐1】如图,
,
平分
交
于点E,
平分
交
于点F,
.
(1)试证明
;
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb34d917a073024625616e4edf22016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3139e28714bfc3d5d875d78dd245d2e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/05d5009f-6ba0-4bf8-8aa2-a321c2b20f62.png?resizew=163)
(1)试证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e702e136211878dce558e0457f15df63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77282d5b97a60264cf15fb74b48e4b59.png)
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【推荐1】如图,在平面直角坐标系
中,点
均在坐标轴上,
,
平分
交
轴于点
,
平分
交
轴于点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
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【推荐2】若关于x,y的多项式
的值与字母x取值无关.
(1)求
的值;
(2)已知∠AOB=m°,在∠AOB内有一条射线OP,恰好把∠AOB分成1:n的两部分,求∠AOP的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4672fe46e17dd9aacd5e7371473d1510.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281714757bebb33407b1b1e954271d5d.png)
(2)已知∠AOB=m°,在∠AOB内有一条射线OP,恰好把∠AOB分成1:n的两部分,求∠AOP的度数.
您最近一年使用:0次